Final answer:
Mental faculties can be domain-specific, meaning that different parts of the brain are responsible for different functions, supported by research on areas like Broca's area. However, there are also cognitive abilities that can transfer across domains.
Step-by-step explanation:
George Combe, a Scottish phrenologist, proposed that mental faculties are domain-specific, meaning that different parts of the brain are responsible for different functions. This idea was further developed by French physician Paul Broca, who found that damage to a specific area of the brain, now known as Broca's area, resulted in speech deficits.
This supports the notion that mental abilities are localized to specific areas of the brain. Conversely, the concept of general intelligence suggests that mental faculties are not domain-specific, but rather generalized across different tasks or domains.
It is important to note that while some mental processes may be domain-specific, there are also cognitive abilities that can transfer across domains, such as problem-solving skills or memory.